What is the molecular shape of BF3 according to VSEPR theory?

Practice Questions

Q1
What is the molecular shape of BF3 according to VSEPR theory?
  1. Bent
  2. Trigonal planar
  3. Tetrahedral
  4. Octahedral

Questions & Step-by-Step Solutions

What is the molecular shape of BF3 according to VSEPR theory?
  • Step 1: Identify the central atom in BF3, which is boron (B).
  • Step 2: Count the number of bonds boron forms with fluorine (F) atoms. BF3 has three F atoms bonded to B.
  • Step 3: Determine the number of lone pairs on the central atom (B). In BF3, there are no lone pairs on boron.
  • Step 4: Use VSEPR theory to analyze the arrangement of the bonding pairs. With three bonding pairs and no lone pairs, the shape is determined.
  • Step 5: Conclude that the molecular shape of BF3 is trigonal planar.
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